Rotary discharge-valve.



0. MANTIUS.

ROTARY DISCHARGE VALVE.

APPLIGATION FILED MAR.13,1908.

941,024, Patented N 0V. 23, 1909.

UNITED STATES PATENT OFFICE.

OTTO MANTIUS, 0F CHICAGO, ILLINOIS, ASSIGNOR TO ZABEMBA COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF MAINE.

ROTARY DISCHARGE-VALVE.

Specification of Letters Patent.

Patented'Nov. 23, 1909.

Application led Iarch 13, 1908. Serial No. 480,815.

trolled bya valve plug rotatably mounted in a suitable seat or bearing formed in said valve caslng which extends transversely to the j passageway through said valve casing, said valve plug being provided with pockets in its perimeter, adapted to be brought alternately into communication with the sections of the passageway through the valve casing on opposite s ides of said valve plug, byrotation thereof.

Rotary discharge valves of the general type to which my invention relates admit of a Wide range of application. Of its various uses the following may be s eciled, for purposes of illustration: disc arging salt from vacuum pans; in pneumatic conveyers, as see particularly U. S. Letters Patent No. 588,518, dated August 17, 1897; and in measuring apparatus of various kinds.

Among the objects of the invention are to provide lfor taking up wear in the valve plug bearing, in order to adjust the fit of said plug to its bearing; and to prevent the valve plug from binding in its seat or bearing. j

Further objects of the invention are to provide means for exhausting air from the pockets in said valve plug before they come into communication-with the admission section of the passageway through the valve casing, in order that the material to be discharge section of said passageway to said valve casing, in order to break the adhesion between the contents of said ockets 'and the sides thereof, thereby dis od ing the entire contents of said pockets am? permitting the same to fall by gravity, thus insuring maximum efloiency of the valve. y

To eect these objects, my improved discharge valve comprises the various features, combinations of features and details of construction hereinafter described and claimed.

In the accompan ing drawings, in which my invention 1s fiilly illustrated-Figure l is. a sectional view of my improved disin the operation charge valve on the line 1-1 of Fig. 2, the

positions of the compression fluid connections being indicated in dotted lines. Fig. 2 is a sectional view thereof on the line 2 2 of Fig. 1; and Fi 3 is a sectional view on the line 3- 8 of Fig. l, the pockets and passageways in the valve plug being indicated in dotted lines.

Referring now to the drawings, A and B desi nate, respectively, the casing and rotata le plug of my improved valve, said valve casing A being provided with a longitudinal passageway C andA the valve plug B being mounted in a suitable seat or bearing in said valve casing extending transversely to said passageway in posltion to close the same. As shown, said valve plug B divides said passageway C into an upper admission section 1 and a lower discharge section 2.

Formed in the perimeter of the valve plug B are open sided pockets 3, 4, 5 and 6, which are adapted to be brought alternately into communication with the admiion and discharge sections 1 and 2 of the assageway C by rotation of the valve plug At its ends the valve casing A is provided with flanges 7, adapted for connecting the same to a ipe or conduit or to the discharge opening o any desired receptacle, indicated at s, Fig. 1. Y

As regards the foregoing features, my improved valve is old and well known in the art and will be readily understood from an inspection of the drawings without a further detailed description thereof.

To provide for taking up wear in the bearing 9 of the valve plug B, said valve plug B and its seat or bearin are correspondingly tapered. The fit o said plug to its seat or bearing can therefore be adjusted by adjustin said valve axially. To increase the life of the valve plug bearing, and to provide for renewing the same, the valve seat or bearing is preferably formed directly in the bushing 10, preferably made of phosphor-bronze or the like, said bushing being secured against rotation by means of pins 11. The bushing 1s provided wlth holes or openings which reglster with the will be considered as forming parts of the opening admission and discharge setionsl and 2 of the passageway through `sa1d cas1ng.

The valve plug B is maintained yieldmgly in engagement with its seat or bearing by means of a plate 12, supported on the valve casing A and which bears against the large end of said valve plug. As shown, the plate 12 is mounted on the valve casing by means of stud bolts 13 which extend through suitable holes or openings in said plate 12. Threaded to said stud bolts outside of said plate 12 are nuts 14 between which and the outer side of said plate are inserted coiled springs 15. With this construction it is obvious that the valve plug B will be held vieldingly in engagementwith its seat or bearing with `a pressure which may be adjusted by setting u or loosening the nuts 14. In order to re uce the friction between the valve plug B and plate 12, an antifriction ball bearing 16 is preferably provided between the opposed surfaces thereof.

To prevent the valve plug B from binding inits bearing, due to the pressure of the plate 12, a thrust bearing is preferably provided at the opposite end of said valve, consisting, as shown, of a bolt 17 threaded through a rigid portion of the valve casing, preferably in axial alinement with the valve plug B, the inner end' of which is adapted to bear against the end of said valve plug B. In order to reduce wear and friction, the screw 17 referably bears directly against a hardene steel disk 18 fitted to turn freely in a suitable recess formed in the end of said valve lug. The screw 17 isadapted to be secured in any desired adjustment by means of a lock nut 19. Said thrust screw 17 also provides convenient means for adjusting the valve plug B in its bearing to provide for taking up wear and for maintaining a desirably close fit.

Rotation is adapted to be imparted to the valve plug B from any suitable source of power, not shown, by means of a chain belt or the like, not shown, applied to a sprocket wheel 2O secured to rotate with said valve plug. As shown, said sprocket wheel 20 is keyed or otherwise secured to rotate with a stud 21 threaded into the end of a hub 22 formed on the large end of the valve plug B, both said stud and hub being in axial alinement with said valve plug and a hole or 23 through which the hub 22 projects.

To provide for exhausting the air from formed in the plate 12A the 'pockets 3, 4, 5 and 6 in the valve plug 13, before they come into communication with the admission section 1 of the passageway C, and for discharging jets of fluid under pressure into said pockets when in communication with the discharge section 2 of said passageway, passageways equal in number to the pockets in the valve plug, are formed in said valve plug, said passageways comprising, respectively, sections 24, 25, 26 and 27, which extend lengthwise of said valve plug preferably directly beneath the bottoms of said pockets and lateral sections 28, 29, 30 and 31, formed in the solid end portions of said valve plug adapted to be brought into register with ports 32 and 33 formed in the valve casing A and adapted said passageway, in which position the open f sides thereof are closed by the side of thev valve casin forming the seat or bearing for the valve p ug B, that is, -when said pockets are substantlally in theA position of the pocket 6, Fig. 2, and the relation being such, also, that said pasa'geways will come linto register with the port 32 when` said .pockets are in communication with the discharge section 2' of the passageway C, that is, when ubstantially in the position of the pocket 5,

"im 2. y

lan the drawings, I'have shown duplicate sets of lateral passages 28, 29, 30 and 31 located and communicating with the longitudinal passages 24, 25, 26 and 27 at opposite ends of the valve plug B and have alsol shown duplicate ports 32 one adapted forconnection with a source of steam supply and the other with a source' of supply of 1 compressed air, whereby either steam or compressed air may be used for dislodging" the contents of the pockets 3, 4, 5 and 6fof the valve plug B, as maybe desired.

The lateral passages 28, 29, 30 and 31 open through the sides of the valve plug B and,

except when in communication with the ports 32 and 33, are closed by the ywalls of the valve casing A forming the seator bearingfor the valve lug Bl As shown, the ongitudinal passageways 24, 25, 26 and 27 are drilled from the small end of the valve plug, their outer ends being afterward closed by means of plugs 34. Said longitudinal passageways 24, 25, 26 and 27 communicate with the pockets 3, 4, 5 and 6 preferably ,closel adjacent to their bottoms, by means of ho es or openings 35.

With the arrangement and relation of passages shown, the valve plug B is designed to rotate in the direction indicated by the arrows in Figs. 2 and 3.

I claim: y

l. Ina valve, the combination of a'valve casing provided with a passageway extending through the same and with a Valve seat, said passageway comprising separate sections on opposite sides'of said valve seat, a rotary valve member mounted inv said valve seat provided with an openiii or openings adapted to be brought into register with different sections of the passageway through said valve casingl by rotationv of said rotary valve Zmember, said valve being provided with a passageway or passageways, comprising a section or sections formed in the valve casing, adapted to be connected with a source of supply of Huid under pressureand ada ted to be brought into communication with the opening or openings in said rotary valve member byvrotation thereof.

2. In a valve, the combination of a valve casing provided with a passageway extending through the same and with a valve seat, said passageway comprising separate sections on opposite sides of said valve seat, a rotary valve member mounted in said valve seat provided with an opening or openings adapted to be brought into register with diilerent sections of the passageway through said valve casing by rotation of said rotary'valve member, said valve being provided with a passageway or passageways, comprising a section or sections formed in the valve casing, adapted to be connected with vacuum producing means and adapted to be brought into communication with the opening or openings in said rotary valve member by rotation thereof. l

3. In a valve, the combination of 'a valve casing provided with a passageway extending through the same-and with a valve seat, said passageway comprising separate sections on opposite sides of said valve seat, a rotary valve member mounted in said valve, seat provided with an opening or openings adapted to be brought into register with different sections of the passageway through said valve casing b'yerotation of said rotary valve member, said valve being -provided with passageways, comprising sections formed, in the valve casing, adapted to be connected, respectively, with a source of supply of Hui under pressure and with vacuum producing means and adapted to be brought into communication with theopening or openings in said rotary valve member by rotation thereof.

4. In a rotary discharge valve of the type .opening through the side of sai 'dayQfFebmary A l oTTo MANTIUS.

described, the combination-of a valve casing provided with a passageway and with. a valve Iseat. a valve plug provided with pockets in its perimeter rotatably mounted in said valve seat, and means for securing said valve plug in said valve seat, said Valve plug being provided with passageways which communicate with the pockets therein ada ted to be brought into communication witlli) a port or orts adapted for connection with a source oi) suppl of fluid under pressure by rotation of sai valve plug.

5. In a rotary discharge valve of the type described, the combination of a valve casin provided with a passageway and with a va ve seat, a valve plug provided with pockets in its perimeter rotatably mounted in said valve seat, and means for securing said valve plug in said valve seat, said valve plug eing provided with passageways which communicate with the pockets therein adalpted to be brought into communication wit a port adapted for connection with vacuum producin means.

6. In a rotary ischarge valve of the type described, the combination of a valve casing provided with a passageway and with a valve seat, a valve p ug provided with pockets inits perimeter rotatably mounted in sai valve'seat, and means for securing said valve plug in said valve seat, said valve plug being provided with passageways which` communicate with the pockets therein adapted to be brought into `communication withV ports adapted for connection, respectively, with a source of supply of fluid under pressure and with vacuum producing means. 7. In a rotaryA discharge valve of the type described, the combination of a valve casing provided with a passageway and with a valveseat, a valve plug provided with pockets in its perimeter rotatably mounted in said valve seat, and means for securing said valve plug in said valve seat, said valve lu beingv provided with passageways w ic communicate with the pockets therein,

'ada ted to be brought into communication wit a pprt or ports formed in the valve casing,.t e outer ends of said passageways and being normally closed by the wa s of the valve casing formin the valve seat.

In ttimony that I c aim the foregoing as my invention, l aiix mysignature in presenceof two subscribing-lgtnesses, this 29th CHARLES B. GiLLsoN,

M.' MCQRATH'.

valveplug 

